<template>
  <div class="app-container">
    <KnowledgeGraph></KnowledgeGraph>
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="false" label-width="68px">
      <el-form-item label="课程名称" prop="courseName">
        <!-- <el-input
          v-model="queryParams.courseName"
          placeholder="请输入课程名称"
          clearable
          @keyup.enter.native="handleQuery"
        /> -->

        <el-select
          v-model="queryParams.courseName"
          placeholder="请选输入课程名称"
          clearable
          @keyup.enter.native="handleQuery"
        >
          <el-option v-for="(item, index) in type" :key="index" :value="item"></el-option>
        </el-select>

      </el-form-item>
      <!-- <el-form-item label="课程简称" prop="courseNameNik">
        <el-input
          v-model="queryParams.courseNameNik"
          placeholder="请输入课程简称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item> -->
      <!-- <el-form-item label="关键词" prop="courseKeyWord">
        <el-input
          v-model="queryParams.courseKeyWord"
          placeholder="请输入课程关键词"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item> -->
      <!-- <el-form-item label="课程类别" prop="courseClass">
        <el-input
          v-model="queryParams.courseClass"
          placeholder="请输入课程类别"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item> -->
      <el-form-item label="课程编码" prop="courseNumber">
        <el-input
          v-model="queryParams.courseNumber"
          placeholder="请输入课程编码"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <!-- <el-form-item label="课程学分" prop="courseScore">
        <el-input
          v-model="queryParams.courseScore"
          placeholder="请输入课程学分"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item> -->
      <!-- <el-form-item label="平时分" prop="pcScore">
        <el-input
          v-model="queryParams.pcScore"
          placeholder="请输入平时分"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item> -->
      <!-- <el-form-item label="实践学分" prop="sjScore">
        <el-input
          v-model="queryParams.sjScore"
          placeholder="请输入实践学分"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item> -->
      <!-- <el-form-item label="考试学分" prop="ksScore">
        <el-input
          v-model="queryParams.ksScore"
          placeholder="请输入考试学分"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item> -->
      <!-- <el-form-item label="课程学时" prop="courseTime">
        <el-input
          v-model="queryParams.courseTime"
          placeholder="请输入课程学时"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item> -->
      <el-form-item label="课程教师" prop="courseLeader">
        <el-input
          v-model="queryParams.courseLeader"
          placeholder="请输入课程教师"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <!-- <el-form-item label="考试方式" prop="testWay">
        <el-input
          v-model="queryParams.testWay"
          placeholder="请输入考试方式"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item> -->
      <el-form-item label="状态" prop="courseStatus">
        <el-select
          v-model="queryParams.status"
          placeholder="请选择课程状态"
          clearable
          @keyup.enter.native="handleQuery"
        >
          <el-option label="启用" value="1"></el-option>
          <el-option label="停用" value="0"></el-option>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8" v-show="false">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['courseSelect:course:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['courseSelect:course:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['courseSelect:course:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['courseSelect:course:export']"
        >导出</el-button>
      </el-col>

      <el-col :span="1.5">
        <el-button
          type="info"
          icon="el-icon-upload2"
          size="mini"
          @click="handleImport"
          v-hasPermi="['system:honor:import']"
        >导入</el-button>
      </el-col>

      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="courseList" @selection-change="handleSelectionChange" v-show="false">
      <el-table-column type="selection" width="55" align="center" />
      <!-- <el-table-column label="课程id" align="center" prop="courseId" /> -->
      <el-table-column label="课程名称" align="center" prop="courseName" />
      <!-- <el-table-column label="课程简称" align="center" prop="courseNameNik" /> -->
      <!-- <el-table-column label="课程描述" align="center" prop="courseDesc" /> -->
      <el-table-column label="课程描述" align="center" prop="courseDesc" width="150px">
        <template slot-scope="scope">
          <el-popover placement="top-start" title="关于本课" width="400" trigger="hover" :content="scope.row.courseDesc">
            <el-button slot="reference">课程详情</el-button>
          </el-popover>
        </template>
      </el-table-column>
      <el-table-column label="关键词" align="center" prop="courseKeyWord" />
      <!-- <el-table-column label="课程类别" align="center" prop="courseClass" /> -->
      <el-table-column label="课程年级" align="center" prop="courseType" />
      <!-- <el-table-column label="课程编码" align="center" prop="courseNumber" /> -->
      <!-- <el-table-column label="课程学分" align="center" prop="courseScore" /> -->
      <!-- <el-table-column label="平时分" align="center" prop="pcScore" /> -->
      <!-- <el-table-column label="实践学分" align="center" prop="sjScore" /> -->
      <!-- <el-table-column label="考试学分" align="center" prop="ksScore" /> -->
      <!-- <el-table-column label="课程学时" align="center" prop="courseTime" /> -->
      <el-table-column label="课程教师" align="center" prop="courseLeader" />
      <!-- <el-table-column label="考试方式" align="center" prop="testWay" /> -->
      <el-table-column label="课程图标" align="center" prop="courseImg" width="100">
        <template slot-scope="scope">
          <image-preview :src="scope.row.courseImg" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <!-- <el-table-column label="0 停用 1 启用" align="center" prop="status" /> -->
      <el-table-column label="状态" align="center" prop="status" v-if="columns[0].visible">
        <template slot-scope="scope">
          <el-switch
            v-model="scope.row.status"
            active-value="1"
            inactive-value="0"
            @change="handleStatusChange(scope.row)"
          ></el-switch>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['courseSelect:course:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['courseSelect:course:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
      v-show="false"
    />

    <!-- 用户导入对话框 -->
    <el-dialog :title="upload.title" :visible.sync="upload.open" width="400px">
      <el-upload
        ref="upload"
        :limit="1"
        accept=".xlsx, .xls"
        :headers="upload.headers"
        :action="upload.url + '?updateSupport=' + upload.updateSupport"
        :disabled="upload.isUploading"
        :on-progress="handleFileUploadProgress"
        :on-success="handleFileSuccess"
        :auto-upload="false"
        drag
      >
        <i class="el-icon-upload"></i>
        <div class="el-upload__text">
          将文件拖到此处，或
          <em>点击上传</em>
        </div>
        <div class="el-upload__tip" slot="tip">
          <el-checkbox v-model="upload.updateSupport" />是否更新已经存在的用户数据
          <el-link type="info" style="font-size:12px" @click="importTemplate">下载模板</el-link>
        </div>
        <div class="el-upload__tip" style="color:red" slot="tip">提示：仅允许导入“xls”或“xlsx”格式文件！</div>
      </el-upload>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitFileForm">确 定</el-button>
        <el-button @click="upload.open = false">取 消</el-button>
      </div>
    </el-dialog>

    <!-- 添加或修改推荐课程对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="700px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="12">
            <el-form-item label="课程名称" prop="courseName">
              <el-input v-model="form.courseName" placeholder="请输入课程名称" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="课程简称" prop="courseNameNik">
              <el-input v-model="form.courseNameNik" placeholder="请输入课程简称" />
            </el-form-item>
          </el-col>
        </el-row>

        <el-row>
          <el-col :span="12">
            <el-form-item label="关键词" prop="courseKeyWord">
              <el-input v-model="form.courseKeyWord" placeholder="请输入课程关键词" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="课程年级" prop="courseClass">
              <el-input v-model="form.courseType" placeholder="请输入课程年级" />
            </el-form-item>
          </el-col>
        </el-row>

        <el-row>
          <el-col :span="12">
            <el-form-item label="课程编码" prop="courseNumber">
              <el-input v-model="form.courseNumber" placeholder="请输入课程编码" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="课程学分" prop="courseScore">
              <el-input v-model="form.courseScore" placeholder="请输入课程学分" />
            </el-form-item>
          </el-col>
        </el-row>

        <el-row>
          <el-col :span="12">
            <el-form-item label="平时分" prop="pcScore">
              <el-input v-model="form.pcScore" placeholder="请输入平时分" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="实践学分" prop="sjScore">
              <el-input v-model="form.sjScore" placeholder="请输入实践学分" />
            </el-form-item>
          </el-col>
        </el-row>

        <el-row>
          <el-col :span="12">
            <el-form-item label="考试学分" prop="ksScore">
              <el-input v-model="form.ksScore" placeholder="请输入考试学分" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="课程学时" prop="courseTime">
              <el-input v-model="form.courseTime" placeholder="请输入课程学时" />
            </el-form-item>
          </el-col>
        </el-row>

        <el-row>
          <el-col :span="12">
            <el-form-item label="课程教师" prop="courseLeader">
              <el-input v-model="form.courseLeader" placeholder="请输入课程教师" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="考试方式" prop="testWay">
              <el-input v-model="form.testWay" placeholder="请输入考试方式" />
            </el-form-item>
          </el-col>
        </el-row>

        <el-row>
          <el-form-item label="课程描述" prop="courseDesc">
            <el-input v-model="form.courseDesc" type="textarea" placeholder="请输入内容" :rows="5"/>
          </el-form-item>
          <el-form-item label="课程图标" prop="courseImg">
            <image-upload v-model="form.courseImg"/>
          </el-form-item>
        </el-row>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listCourse, getCourse, delCourse, addCourse, updateCourse, changeCourseStatus, getCourseType } from "@/api/courseSelect/course";
import { getToken } from "@/utils/auth";

export default {
  name: "Course",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 推荐课程表格数据
      courseList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        courseName: null,
        courseNameNik: null,
        courseDesc: null,
        courseKeyWord: null,
        courseClass: null,
        courseType: null,
        courseNumber: null,
        courseScore: null,
        pcScore: null,
        sjScore: null,
        ksScore: null,
        courseTime: null,
        courseLeader: null,
        testWay: null,
        courseImg: null,
        status: null
      },
      // 用户导入参数
      upload: {
        // 是否显示弹出层（用户导入）
        open: false,
        // 弹出层标题（用户导入）
        title: "",
        // 是否禁用上传
        isUploading: false,
        // 是否更新已经存在的用户数据
        updateSupport: 0,
        // 设置上传的请求头部
        headers: { Authorization: "Bearer " + getToken() },
        // 上传的地址
        url: process.env.VUE_APP_BASE_API + "/courseSelect/course/importData"
      },
      // 列信息
      columns: [
        { key: 0, label: '状态', visible: true}
      ],
      // 课程类别
      type:[],
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        courseName: [
          { required: true, message: "课程名称不能为空", trigger: "blur" }
        ],
        courseClass: [
          { required: true, message: "课程类别不能为空", trigger: "blur" }
        ],
        courseType: [
          { required: true, message: "课程年级不能为空", trigger: "change" }
        ],
        courseNumber: [
          { required: true, message: "课程编码不能为空", trigger: "blur" }
        ],
        courseLeader: [
          { required: true, message: "课程教师不能为空", trigger: "blur" }
        ],
        status: [
          { required: true, message: "0 停用 1 启用不能为空", trigger: "change" }
        ]
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询推荐课程列表 */
    getList() {
      this.loading = true;
      listCourse(this.queryParams).then(response => {
        this.courseList = response.rows;
        this.total = response.total;
        this.loading = false;
      });

      getCourseType().then(res => {
        this.type = res.data;
      })
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        courseId: null,
        courseName: null,
        courseNameNik: null,
        courseDesc: null,
        courseKeyWord: null,
        courseClass: null,
        courseType: null,
        courseNumber: null,
        courseScore: null,
        pcScore: null,
        sjScore: null,
        ksScore: null,
        courseTime: null,
        courseLeader: null,
        testWay: null,
        courseImg: null,
        updateTime: null,
        createTime: null,
        status: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.courseId)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加推荐课程";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const courseId = row.courseId || this.ids
      getCourse(courseId).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改推荐课程";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.courseId != null) {
            updateCourse(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addCourse(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const courseIds = row.courseId || this.ids;
      this.$modal.confirm('是否确认删除推荐课程编号为"' + courseIds + '"的数据项？').then(function() {
        return delCourse(courseIds);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('courseSelect/course/export', {
        ...this.queryParams
      }, `course_${new Date().getTime()}.xlsx`)
    },

    // 用户状态修改
    handleStatusChange(row) {
      let text = row.status === "1" ? "启用" : "停用";
      this.$modal.confirm('确认要"' + text + '""' + row.courseName + '"课程吗？').then(function() {
        return changeCourseStatus(row.courseId, row.status);
      }).then(() => {
        this.$modal.msgSuccess(text + "成功");
      }).catch(function() {
        row.status = row.status === "0" ? "1" : "0";
      });
    },
    /** 导入按钮操作 */
    handleImport() {
      this.upload.title = "用户导入";
      this.upload.open = true;
    },
    /** 下载模板操作 */
    importTemplate() {
      this.download('courseSelect/course/importTemplate', {
      }, `course_template_${new Date().getTime()}.xlsx`)
    },
// 文件上传中处理
    handleFileUploadProgress(event, file, fileList) {
      this.upload.isUploading = true;
    },
// 文件上传成功处理
    handleFileSuccess(response, file, fileList) {
      this.upload.open = false;
      this.upload.isUploading = false;
      this.$refs.upload.clearFiles();
      this.$alert(response.msg, "导入结果", { dangerouslyUseHTMLString: true });
      this.getList();
    },
// 提交上传文件
    submitFileForm() {
      this.$refs.upload.submit();
    }

  }
};
</script>
